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Overview
Comment:New shell command ".load" and the sqlite3_load_extension() API allow new SQL functions and collating sequences to be loaded at run-time from a DLL or shared library. (CVS 3207)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1:4ca932d3ae9bb97b819b5baf6fd3e1cebda9e0e2
User & Date: drh 2006-06-08 15:28:44
Context
2006-06-08
15:48
Unload shared libraries when a database connection closes. (CVS 3208) check-in: 327e6909 user: drh tags: trunk
15:28
New shell command ".load" and the sqlite3_load_extension() API allow new SQL functions and collating sequences to be loaded at run-time from a DLL or shared library. (CVS 3207) check-in: 4ca932d3 user: drh tags: trunk
2006-06-06
13:34
Version 3.3.6 (CVS 3206) check-in: c11cb07e user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to Makefile.in.

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OPTS += -DSQLITE_OMIT_CURSOR          # Cursors do not work at this time
TCC += -DSQLITE_OMIT_CURSOR

# Object files for the SQLite library.
#
LIBOBJ = alter.lo analyze.lo attach.lo auth.lo btree.lo build.lo \
         callback.lo complete.lo date.lo \
         delete.lo expr.lo func.lo hash.lo insert.lo \
         main.lo opcodes.lo os.lo os_unix.lo os_win.lo os_os2.lo \
         pager.lo parse.lo pragma.lo prepare.lo printf.lo random.lo \
         select.lo table.lo tokenize.lo trigger.lo update.lo \
         util.lo vacuum.lo \
         vdbe.lo vdbeapi.lo vdbeaux.lo vdbefifo.lo vdbemem.lo \
         where.lo utf.lo legacy.lo

................................................................................
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/legacy.c \

  $(TOP)/src/main.c \
  $(TOP)/src/os.c \
  $(TOP)/src/os_unix.c \
  $(TOP)/src/os_win.c \
  $(TOP)/src/os_os2.c \
  $(TOP)/src/pager.c \
  $(TOP)/src/pager.h \
................................................................................
HDR = \
   sqlite3.h  \
   $(TOP)/src/btree.h \
   $(TOP)/src/hash.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \

   $(TOP)/src/sqliteInt.h  \
   $(TOP)/src/vdbe.h \
   parse.h

# Header files used by the VDBE submodule
#
VDBEHDR = \
................................................................................
	$(LTCOMPILE) -c $(TOP)/src/hash.c

insert.lo:	$(TOP)/src/insert.c $(HDR)
	$(LTCOMPILE) -c $(TOP)/src/insert.c

legacy.lo:	$(TOP)/src/legacy.c $(HDR)
	$(LTCOMPILE) -c $(TOP)/src/legacy.c




main.lo:	$(TOP)/src/main.c $(HDR)
	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/main.c

pager.lo:	$(TOP)/src/pager.c $(HDR) $(TOP)/src/pager.h
	$(LTCOMPILE) -c $(TOP)/src/pager.c








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OPTS += -DSQLITE_OMIT_CURSOR          # Cursors do not work at this time
TCC += -DSQLITE_OMIT_CURSOR

# Object files for the SQLite library.
#
LIBOBJ = alter.lo analyze.lo attach.lo auth.lo btree.lo build.lo \
         callback.lo complete.lo date.lo \
         delete.lo expr.lo func.lo hash.lo insert.lo loadext.lo \
         main.lo opcodes.lo os.lo os_unix.lo os_win.lo os_os2.lo \
         pager.lo parse.lo pragma.lo prepare.lo printf.lo random.lo \
         select.lo table.lo tokenize.lo trigger.lo update.lo \
         util.lo vacuum.lo \
         vdbe.lo vdbeapi.lo vdbeaux.lo vdbefifo.lo vdbemem.lo \
         where.lo utf.lo legacy.lo

................................................................................
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/legacy.c \
  $(TOP)/src/loadext.c \
  $(TOP)/src/main.c \
  $(TOP)/src/os.c \
  $(TOP)/src/os_unix.c \
  $(TOP)/src/os_win.c \
  $(TOP)/src/os_os2.c \
  $(TOP)/src/pager.c \
  $(TOP)/src/pager.h \
................................................................................
HDR = \
   sqlite3.h  \
   $(TOP)/src/btree.h \
   $(TOP)/src/hash.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \
   $(TOP)/src/sqlite3ext.h \
   $(TOP)/src/sqliteInt.h  \
   $(TOP)/src/vdbe.h \
   parse.h

# Header files used by the VDBE submodule
#
VDBEHDR = \
................................................................................
	$(LTCOMPILE) -c $(TOP)/src/hash.c

insert.lo:	$(TOP)/src/insert.c $(HDR)
	$(LTCOMPILE) -c $(TOP)/src/insert.c

legacy.lo:	$(TOP)/src/legacy.c $(HDR)
	$(LTCOMPILE) -c $(TOP)/src/legacy.c

loadext.lo:	$(TOP)/src/loadext.c $(HDR)
	$(LTCOMPILE) -c $(TOP)/src/loadext.c

main.lo:	$(TOP)/src/main.c $(HDR)
	$(LTCOMPILE) $(TEMP_STORE) -c $(TOP)/src/main.c

pager.lo:	$(TOP)/src/pager.c $(HDR) $(TOP)/src/pager.h
	$(LTCOMPILE) -c $(TOP)/src/pager.c

Changes to main.mk.

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#
TCCX = $(TCC) $(OPTS) $(THREADSAFE) $(USLEEP) -I. -I$(TOP)/src

# Object files for the SQLite library.
#
LIBOBJ+= alter.o analyze.o attach.o auth.o btree.o build.o \
         callback.o complete.o date.o delete.o \
         expr.o func.o hash.o insert.o \
         main.o opcodes.o os.o os_os2.o os_unix.o os_win.o \
         pager.o parse.o pragma.o prepare.o printf.o random.o \
         select.o table.o tclsqlite.o tokenize.o trigger.o \
         update.o util.o vacuum.o \
         vdbe.o vdbeapi.o vdbeaux.o vdbefifo.o vdbemem.o \
         where.o utf.o legacy.o

................................................................................
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/legacy.c \

  $(TOP)/src/main.c \
  $(TOP)/src/os.c \
  $(TOP)/src/os_os2.c \
  $(TOP)/src/os_unix.c \
  $(TOP)/src/os_win.c \
  $(TOP)/src/pager.c \
  $(TOP)/src/pager.h \
................................................................................
HDR = \
   sqlite3.h  \
   $(TOP)/src/btree.h \
   $(TOP)/src/hash.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \

   $(TOP)/src/sqliteInt.h  \
   $(TOP)/src/vdbe.h \
   parse.h

# Header files used by the VDBE submodule
#
VDBEHDR = \
................................................................................
	$(TCCX) -c $(TOP)/src/hash.c

insert.o:	$(TOP)/src/insert.c $(HDR)
	$(TCCX) -c $(TOP)/src/insert.c

legacy.o:	$(TOP)/src/legacy.c $(HDR)
	$(TCCX) -c $(TOP)/src/legacy.c




main.o:	$(TOP)/src/main.c $(HDR)
	$(TCCX) -c $(TOP)/src/main.c

pager.o:	$(TOP)/src/pager.c $(HDR) $(TOP)/src/pager.h
	$(TCCX) -c $(TOP)/src/pager.c








|







 







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>







 







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#
TCCX = $(TCC) $(OPTS) $(THREADSAFE) $(USLEEP) -I. -I$(TOP)/src

# Object files for the SQLite library.
#
LIBOBJ+= alter.o analyze.o attach.o auth.o btree.o build.o \
         callback.o complete.o date.o delete.o \
         expr.o func.o hash.o insert.o loadext.o \
         main.o opcodes.o os.o os_os2.o os_unix.o os_win.o \
         pager.o parse.o pragma.o prepare.o printf.o random.o \
         select.o table.o tclsqlite.o tokenize.o trigger.o \
         update.o util.o vacuum.o \
         vdbe.o vdbeapi.o vdbeaux.o vdbefifo.o vdbemem.o \
         where.o utf.o legacy.o

................................................................................
  $(TOP)/src/delete.c \
  $(TOP)/src/expr.c \
  $(TOP)/src/func.c \
  $(TOP)/src/hash.c \
  $(TOP)/src/hash.h \
  $(TOP)/src/insert.c \
  $(TOP)/src/legacy.c \
  $(TOP)/src/loadext.c \
  $(TOP)/src/main.c \
  $(TOP)/src/os.c \
  $(TOP)/src/os_os2.c \
  $(TOP)/src/os_unix.c \
  $(TOP)/src/os_win.c \
  $(TOP)/src/pager.c \
  $(TOP)/src/pager.h \
................................................................................
HDR = \
   sqlite3.h  \
   $(TOP)/src/btree.h \
   $(TOP)/src/hash.h \
   opcodes.h \
   $(TOP)/src/os.h \
   $(TOP)/src/os_common.h \
   $(TOP)/src/sqlite3ext.h \
   $(TOP)/src/sqliteInt.h  \
   $(TOP)/src/vdbe.h \
   parse.h

# Header files used by the VDBE submodule
#
VDBEHDR = \
................................................................................
	$(TCCX) -c $(TOP)/src/hash.c

insert.o:	$(TOP)/src/insert.c $(HDR)
	$(TCCX) -c $(TOP)/src/insert.c

legacy.o:	$(TOP)/src/legacy.c $(HDR)
	$(TCCX) -c $(TOP)/src/legacy.c

loadext.o:	$(TOP)/src/loadext.c $(HDR)
	$(TCCX) -c $(TOP)/src/loadext.c

main.o:	$(TOP)/src/main.c $(HDR)
	$(TCCX) -c $(TOP)/src/main.c

pager.o:	$(TOP)/src/pager.c $(HDR) $(TOP)/src/pager.h
	$(TCCX) -c $(TOP)/src/pager.c

Added src/loadext.c.























































































































































































































































































































































































































































































































































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/*
** 2006 June 7
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to dynamically load extensions into
** the SQLite library.
*/
#ifndef SQLITE_OMIT_LOAD_EXTENSION

#define SQLITE_CORE 1  /* Disable the API redefinition in sqlite3ext.h */
#include "sqlite3ext.h"
#include <string.h>
#include <ctype.h>

#ifndef SQLITE_ENABLE_COLUMN_METADATA
# define sqlite3_column_database_name   0
# define sqlite3_column_database_name16 0
# define sqlite3_column_table_name      0
# define sqlite3_column_table_name16    0
# define sqlite3_column_origin_name     0
# define sqlite3_column_origin_name16   0
# define sqlite3_table_column_metadata  0
#endif

const sqlite3_api_routines sqlite3_api = {
  sqlite3_aggregate_context,
  sqlite3_aggregate_count,
  sqlite3_bind_blob,
  sqlite3_bind_double,
  sqlite3_bind_int,
  sqlite3_bind_int64,
  sqlite3_bind_null,
  sqlite3_bind_parameter_count,
  sqlite3_bind_parameter_index,
  sqlite3_bind_parameter_name,
  sqlite3_bind_text,
  sqlite3_bind_text16,
  sqlite3_busy_handler,
  sqlite3_busy_timeout,
  sqlite3_changes,
  sqlite3_close,
  sqlite3_collation_needed,
  sqlite3_collation_needed16,
  sqlite3_column_blob,
  sqlite3_column_bytes,
  sqlite3_column_bytes16,
  sqlite3_column_count,
  sqlite3_column_database_name,
  sqlite3_column_database_name16,
  sqlite3_column_decltype,
  sqlite3_column_decltype16,
  sqlite3_column_double,
  sqlite3_column_int,
  sqlite3_column_int64,
  sqlite3_column_name,
  sqlite3_column_name16,
  sqlite3_column_origin_name,
  sqlite3_column_origin_name16,
  sqlite3_column_table_name,
  sqlite3_column_table_name16,
  sqlite3_column_text,
  sqlite3_column_text16,
  sqlite3_column_type,
  sqlite3_commit_hook,
  sqlite3_complete,
  sqlite3_complete16,
  sqlite3_create_collation,
  sqlite3_create_collation16,
  sqlite3_create_function,
  sqlite3_create_function16,
  sqlite3_data_count,
  sqlite3_db_handle,
  sqlite3_enable_shared_cache,
  sqlite3_errcode,
  sqlite3_errmsg,
  sqlite3_errmsg16,
  sqlite3_exec,
  sqlite3_expired,
  sqlite3_finalize,
  sqlite3_free,
  sqlite3_free_table,
  sqlite3_get_autocommit,
  sqlite3_get_auxdata,
  sqlite3_get_table,
  sqlite3_global_recover,
  sqlite3_interrupt,
  sqlite3_last_insert_rowid,
  sqlite3_libversion,
  sqlite3_libversion_number,
  sqlite3_mprintf,
  sqlite3_open,
  sqlite3_open16,
  sqlite3_prepare,
  sqlite3_prepare16,
  sqlite3_profile,
  sqlite3_progress_handler,
  sqlite3_reset,
  sqlite3_result_blob,
  sqlite3_result_double,
  sqlite3_result_error,
  sqlite3_result_error16,
  sqlite3_result_int,
  sqlite3_result_int64,
  sqlite3_result_null,
  sqlite3_result_text,
  sqlite3_result_text16,
  sqlite3_result_text16be,
  sqlite3_result_text16le,
  sqlite3_result_value,
  sqlite3_rollback_hook,
  sqlite3_set_authorizer,
  sqlite3_set_auxdata,
  sqlite3_snprintf,
  sqlite3_step,
  sqlite3_table_column_metadata,
  sqlite3_thread_cleanup,
  sqlite3_total_changes,
  sqlite3_trace,
  sqlite3_transfer_bindings,
  sqlite3_update_hook,
  sqlite3_user_data,
  sqlite3_value_blob,
  sqlite3_value_bytes,
  sqlite3_value_bytes16,
  sqlite3_value_double,
  sqlite3_value_int,
  sqlite3_value_int64,
  sqlite3_value_numeric_type,
  sqlite3_value_text,
  sqlite3_value_text16,
  sqlite3_value_text16be,
  sqlite3_value_text16le,
  sqlite3_value_type,
  sqlite3_vmprintf,
};


 #if defined(_WIN32) || defined(WIN32) || defined(__MINGW32__) || defined(__BORLANDC__)
# include <windows.h>
# define SQLITE_LIBRARY_TYPE     HANDLE
# define SQLITE_OPEN_LIBRARY(A)  LoadLibrary(A)
# define SQLITE_FIND_SYMBOL(A,B) GetProcAddress(A,B)
# define SQLITE_LIBRARY_ERROR(A) FreeLibrary(A)
# define SQLITE_CLOSE_LIBRARY(A) 
#endif /* windows */

/*
** Non-windows implementation of shared-library loaders
*/
#if defined(HAVE_DLOPEN) && !defined(SQLITE_LIBRARY_TYPE)
# include <dlfcn.h>
# define SQLITE_LIBRARY_TYPE     void*
# define SQLITE_OPEN_LIBRARY(A)  dlopen(A, RTLD_NOW | RTLD_GLOBAL)
# define SQLITE_FIND_SYMBOL(A,B) dlsym(A,B)
# define SQLITE_LIBRARY_ERROR(A) dlclose(A)
# define SQLITE_CLOSE_LIBRARY(A)
#endif

/*
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case the
** name of the entry point is derived from the filename.
**
** Return SQLITE_OK on success and SQLITE_ERROR if something goes wrong.
**
** If an error occurs and pzErrMsg is not 0, then fill *pzErrMsg with 
** error message text.  The calling function should free this memory
** by calling sqlite3_free().
**
** The entry point name is derived from the filename according to the
** following steps:
**
**    * Convert the name to lower case
**    * Remove the path prefix from the name
**    * Remove the first "." and all following characters from the name
**    * If the name begins with "lib" remove the first 3 characters
**    * Remove all characters that are not US-ASCII alphanumerics
**      or underscores
**    * Remove any leading digits and underscores from the name
**    * Append "_init" to the name
**
** So, for example, if the input filename is "/home/drh/libtest1.52.so"
** then the entry point would be computed as "test1_init".
**
** The derived entry point name is limited to a reasonable number of
** characters (currently 200).
*/
int sqlite3_load_extension(
  sqlite3 *db,          /* Load the extension into this database connection */
  const char *zFile,    /* Name of the shared library containing extension */
  const char *zProc,    /* Entry point.  Derived from zFile if 0 */
  char **pzErrMsg       /* Put error message here if not 0 */
){
#ifdef SQLITE_LIBRARY_TYPE
  SQLITE_LIBRARY_TYPE handle;
  int (*xInit)(sqlite3*,char**,const sqlite3_api_routines*);
  char *zErrmsg = 0;

  if( zProc==0 ){
    int i, j, n;
    char *z;
    char zBuf[200];
    n = strlen(zFile);
    for(i=n-1; i>0 && zFile[i-1]!='/'; i--){}
    for(j=i; zFile[j] && zFile[j]!='.'; j++){}
    if( j-i > sizeof(zBuf)-10 ) j = i + sizeof(zBuf) - 10;
    memcpy(zBuf, &zFile[i], j - i);
    zBuf[j - i] = 0;
    z = zBuf;
    for(i=j=0; z[i]; i++){
      int c = z[i];
      if( (c & 0x80)!=0 || (!isalnum(c) && c!='_') ) continue;
      z[j++] = tolower(c);
    }
    z[j] = 0;
    if( strncmp(z, "lib", 3)==0 ){
      z += 3;
    }
    while( z[0] && !isalpha(z[0]) ){
      z++;
    }
    strcat(z, "_init");
    zProc = z;
  }

  handle = SQLITE_OPEN_LIBRARY(zFile);
  if( handle==0 ){
    if( pzErrMsg ){
      *pzErrMsg = sqlite3_mprintf("unable to open shared library [%s]", zFile);
    }
    return SQLITE_ERROR;
  }
  xInit = (int(*)(sqlite3*,char**,const sqlite3_api_routines*))
                   SQLITE_FIND_SYMBOL(handle, zProc);
  if( xInit==0 ){
    if( pzErrMsg ){
       *pzErrMsg = sqlite3_mprintf("no entry point [%s] in shared library [%s]",
                                   zProc, zFile);
    }
    SQLITE_LIBRARY_ERROR(handle);
    return SQLITE_ERROR;
  }else if( xInit(db, &zErrmsg, &sqlite3_api) ){
    if( pzErrMsg ){
      *pzErrMsg = sqlite3_mprintf("error during initialization: %s", zErrmsg);
    }
    sqlite3_free(zErrmsg);
    SQLITE_LIBRARY_ERROR(handle);
    return SQLITE_ERROR;
  }
  SQLITE_CLOSE_LIBRARY(handle);
  return SQLITE_OK;
#else
  if( pzErrMsg ){
    *pzErrMsg = sqlite3_mprintf(
                     "shared library loading not enabled for this build");
  }
  return SQLITE_ERROR;
#endif
}
#endif /* SQLITE_OMIT_LOAD_EXTENSION */

Changes to src/shell.c.

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9
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....
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1146
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1152
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
**
** $Id: shell.c,v 1.138 2006/06/06 12:32:21 drh Exp $
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "sqlite3.h"
#include <ctype.h>
................................................................................
  ".echo ON|OFF           Turn command echo on or off\n"
  ".exit                  Exit this program\n"
  ".explain ON|OFF        Turn output mode suitable for EXPLAIN on or off.\n"
  ".header(s) ON|OFF      Turn display of headers on or off\n"
  ".help                  Show this message\n"
  ".import FILE TABLE     Import data from FILE into TABLE\n"
  ".indices TABLE         Show names of all indices on TABLE\n"

  ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"
  "                         csv      Comma-separated values\n"
  "                         column   Left-aligned columns.  (See .width)\n"
  "                         html     HTML <table> code\n"
  "                         insert   SQL insert statements for TABLE\n"
  "                         line     One value per line\n"
  "                         list     Values delimited by .separator string\n"
................................................................................
    );
    zShellStatic = 0;
    if( zErrMsg ){
      fprintf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
    }
  }else















  if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg>=2 ){
    int n2 = strlen(azArg[1]);
    if( strncmp(azArg[1],"line",n2)==0
        ||
        strncmp(azArg[1],"lines",n2)==0 ){
      p->mode = MODE_Line;







|







 







>







 







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>
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>







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18
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764
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1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
**
** $Id: shell.c,v 1.139 2006/06/08 15:28:44 drh Exp $
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "sqlite3.h"
#include <ctype.h>
................................................................................
  ".echo ON|OFF           Turn command echo on or off\n"
  ".exit                  Exit this program\n"
  ".explain ON|OFF        Turn output mode suitable for EXPLAIN on or off.\n"
  ".header(s) ON|OFF      Turn display of headers on or off\n"
  ".help                  Show this message\n"
  ".import FILE TABLE     Import data from FILE into TABLE\n"
  ".indices TABLE         Show names of all indices on TABLE\n"
  ".load FILE ?ENTRY?     Load an extension library\n"
  ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"
  "                         csv      Comma-separated values\n"
  "                         column   Left-aligned columns.  (See .width)\n"
  "                         html     HTML <table> code\n"
  "                         insert   SQL insert statements for TABLE\n"
  "                         line     One value per line\n"
  "                         list     Values delimited by .separator string\n"
................................................................................
    );
    zShellStatic = 0;
    if( zErrMsg ){
      fprintf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
    }
  }else

  if( c=='l' && strncmp(azArg[0], "load", n)==0 && nArg>=2 ){
    const char *zFile, *zProc;
    char *zErrMsg = 0;
    int rc;
    zFile = azArg[1];
    zProc = nArg>=3 ? azArg[2] : 0;
    open_db(p);
    rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg);
    if( rc!=SQLITE_OK ){
      fprintf(stderr, "%s\n", zErrMsg);
      sqlite3_free(zErrMsg);
    }
  }else

  if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg>=2 ){
    int n2 = strlen(azArg[1]);
    if( strncmp(azArg[1],"line",n2)==0
        ||
        strncmp(azArg[1],"lines",n2)==0 ){
      p->mode = MODE_Line;

Changes to src/sqlite.h.in.

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1470
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1477
1478
1479
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1482
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This header file defines the interface that the SQLite library
** presents to client programs.
**
** @(#) $Id: sqlite.h.in,v 1.165 2006/04/04 01:54:55 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.
................................................................................
  const char *zColumnName,    /* Column name */
  char const **pzDataType,    /* OUTPUT: Declared data type */
  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
  int *pAutoinc               /* OUTPUT: True if colums is auto-increment */
);









































/*
** Undo the hack that converts floating point types to integer for
** builds on processors without floating point support.
*/
#ifdef SQLITE_OMIT_FLOATING_POINT
# undef double
#endif

#ifdef __cplusplus
}  /* End of the 'extern "C"' block */
#endif
#endif







|







 







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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This header file defines the interface that the SQLite library
** presents to client programs.
**
** @(#) $Id: sqlite.h.in,v 1.166 2006/06/08 15:28:44 drh Exp $
*/
#ifndef _SQLITE3_H_
#define _SQLITE3_H_
#include <stdarg.h>     /* Needed for the definition of va_list */

/*
** Make sure we can call this stuff from C++.
................................................................................
  const char *zColumnName,    /* Column name */
  char const **pzDataType,    /* OUTPUT: Declared data type */
  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
  int *pAutoinc               /* OUTPUT: True if colums is auto-increment */
);

/*
****** EXPERIMENTAL - subject to change without notice **************
**
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case the
** name of the entry point is derived from the filename.
**
** Return SQLITE_OK on success and SQLITE_ERROR if something goes wrong.
**
** If an error occurs and pzErrMsg is not 0, then fill *pzErrMsg with 
** error message text.  The calling function should free this memory
** by calling sqlite3_free().
**
** The entry point name is derived from the filename according to the
** following steps:
**
**    * Convert the name to lower case
**    * Remove the path prefix from the name
**    * Remove the first "." and all following characters from the name
**    * If the name begins with "lib" remove the first 3 characters
**    * Remove all characters that are not US-ASCII alphanumerics
**      or underscores
**    * Remove any leading digits and underscores from the name
**    * Append "_init" to the name
**
** So, for example, if the input filename is "/home/drh/libtest1.52.so"
** then the entry point would be computed as "test1_init".
**
** The derived entry point name is limited to a reasonable number of
** characters (currently 200).
**
****** EXPERIMENTAL - subject to change without notice **************
*/
int sqlite3_load_extension(
  sqlite3 *db,          /* Load the extension into this database connection */
  const char *zFile,    /* Name of the shared library containing extension */
  const char *zProc,    /* Entry point.  Derived from zFile if 0 */
  char **pzErrMsg       /* Put error message here if not 0 */
);

/*
** Undo the hack that converts floating point types to integer for
** builds on processors without floating point support.
*/
#ifdef SQLITE_OMIT_FLOATING_POINT
# undef double
#endif

#ifdef __cplusplus
}  /* End of the 'extern "C"' block */
#endif
#endif

Added src/sqlite3ext.h.

























































































































































































































































































































































































































































































































































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/*
** 2006 June 7
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This header file defines the SQLite interface for use by
** shared libraries that want to be imported as extensions into
** an SQLite instance.  Shared libraries that intend to be loaded
** as extensions by SQLite should #include this file instead of 
** sqlite3.h.
**
** @(#) $Id: sqlite3ext.h,v 1.1 2006/06/08 15:28:44 drh Exp $
*/
#ifndef _SQLITE3EXT_H_
#define _SQLITE3EXT_H_
#include <sqlite3.h>

typedef struct sqlite3_api_routines sqlite3_api_routines;

/*
** The following structure hold pointers to all of the SQLite API
** routines.
*/
struct sqlite3_api_routines {
  void * (*aggregate_context)(sqlite3_context*,int nBytes);
  int  (*aggregate_count)(sqlite3_context*);
  int  (*bind_blob)(sqlite3_stmt*,int,const void*,int n,void(*)(void*));
  int  (*bind_double)(sqlite3_stmt*,int,double);
  int  (*bind_int)(sqlite3_stmt*,int,int);
  int  (*bind_int64)(sqlite3_stmt*,int,sqlite_int64);
  int  (*bind_null)(sqlite3_stmt*,int);
  int  (*bind_parameter_count)(sqlite3_stmt*);
  int  (*bind_parameter_index)(sqlite3_stmt*,const char*zName);
  const char * (*bind_parameter_name)(sqlite3_stmt*,int);
  int  (*bind_text)(sqlite3_stmt*,int,const char*,int n,void(*)(void*));
  int  (*bind_text16)(sqlite3_stmt*,int,const void*,int,void(*)(void*));
  int  (*busy_handler)(sqlite3*,int(*)(void*,int),void*);
  int  (*busy_timeout)(sqlite3*,int ms);
  int  (*changes)(sqlite3*);
  int  (*close)(sqlite3*);
  int  (*collation_needed)(sqlite3*,void*,void(*)(void*,sqlite3*,int eTextRep,const char*));
  int  (*collation_needed16)(sqlite3*,void*,void(*)(void*,sqlite3*,int eTextRep,const void*));
  const void * (*column_blob)(sqlite3_stmt*,int iCol);
  int  (*column_bytes)(sqlite3_stmt*,int iCol);
  int  (*column_bytes16)(sqlite3_stmt*,int iCol);
  int  (*column_count)(sqlite3_stmt*pStmt);
  const char * (*column_database_name)(sqlite3_stmt*,int);
  const void * (*column_database_name16)(sqlite3_stmt*,int);
  const char * (*column_decltype)(sqlite3_stmt*,int i);
  const void * (*column_decltype16)(sqlite3_stmt*,int);
  double  (*column_double)(sqlite3_stmt*,int iCol);
  int  (*column_int)(sqlite3_stmt*,int iCol);
  sqlite_int64  (*column_int64)(sqlite3_stmt*,int iCol);
  const char * (*column_name)(sqlite3_stmt*,int);
  const void * (*column_name16)(sqlite3_stmt*,int);
  const char * (*column_origin_name)(sqlite3_stmt*,int);
  const void * (*column_origin_name16)(sqlite3_stmt*,int);
  const char * (*column_table_name)(sqlite3_stmt*,int);
  const void * (*column_table_name16)(sqlite3_stmt*,int);
  const unsigned char * (*column_text)(sqlite3_stmt*,int iCol);
  const void * (*column_text16)(sqlite3_stmt*,int iCol);
  int  (*column_type)(sqlite3_stmt*,int iCol);
  void * (*commit_hook)(sqlite3*,int(*)(void*),void*);
  int  (*complete)(const char*sql);
  int  (*complete16)(const void*sql);
  int  (*create_collation)(sqlite3*,const char*,int,void*,int(*)(void*,int,const void*,int,const void*));
  int  (*create_collation16)(sqlite3*,const char*,int,void*,int(*)(void*,int,const void*,int,const void*));
  int  (*create_function)(sqlite3*,const char*,int,int,void*,void (*xFunc)(sqlite3_context*,int,sqlite3_value**),void (*xStep)(sqlite3_context*,int,sqlite3_value**),void (*xFinal)(sqlite3_context*));
  int  (*create_function16)(sqlite3*,const void*,int,int,void*,void (*xFunc)(sqlite3_context*,int,sqlite3_value**),void (*xStep)(sqlite3_context*,int,sqlite3_value**),void (*xFinal)(sqlite3_context*));
  int  (*data_count)(sqlite3_stmt*pStmt);
  sqlite3 * (*db_handle)(sqlite3_stmt*);
  int  (*enable_shared_cache)(int);
  int  (*errcode)(sqlite3*db);
  const char * (*errmsg)(sqlite3*);
  const void * (*errmsg16)(sqlite3*);
  int  (*exec)(sqlite3*,const char*,sqlite3_callback,void*,char**);
  int  (*expired)(sqlite3_stmt*);
  int  (*finalize)(sqlite3_stmt*pStmt);
  void  (*free)(char*z);
  void  (*free_table)(char**result);
  int  (*get_autocommit)(sqlite3*);
  void * (*get_auxdata)(sqlite3_context*,int);
  int  (*get_table)(sqlite3*,const char*,char***,int*,int*,char**);
  int  (*global_recover)(void);
  void  (*interrupt)(sqlite3*);
  sqlite_int64  (*last_insert_rowid)(sqlite3*);
  const char * (*libversion)(void);
  int  (*libversion_number)(void);
  char * (*mprintf)(const char*,...);
  int  (*open)(const char*,sqlite3**);
  int  (*open16)(const void*,sqlite3**);
  int  (*prepare)(sqlite3*,const char*,int,sqlite3_stmt**,const char**);
  int  (*prepare16)(sqlite3*,const void*,int,sqlite3_stmt**,const void**);
  void * (*profile)(sqlite3*,void(*)(void*,const char*,sqlite_uint64),void*);
  void  (*progress_handler)(sqlite3*,int,int(*)(void*),void*);
  int  (*reset)(sqlite3_stmt*pStmt);
  void  (*result_blob)(sqlite3_context*,const void*,int,void(*)(void*));
  void  (*result_double)(sqlite3_context*,double);
  void  (*result_error)(sqlite3_context*,const char*,int);
  void  (*result_error16)(sqlite3_context*,const void*,int);
  void  (*result_int)(sqlite3_context*,int);
  void  (*result_int64)(sqlite3_context*,sqlite_int64);
  void  (*result_null)(sqlite3_context*);
  void  (*result_text)(sqlite3_context*,const char*,int,void(*)(void*));
  void  (*result_text16)(sqlite3_context*,const void*,int,void(*)(void*));
  void  (*result_text16be)(sqlite3_context*,const void*,int,void(*)(void*));
  void  (*result_text16le)(sqlite3_context*,const void*,int,void(*)(void*));
  void  (*result_value)(sqlite3_context*,sqlite3_value*);
  void * (*rollback_hook)(sqlite3*,void(*)(void*),void*);
  int  (*set_authorizer)(sqlite3*,int(*)(void*,int,const char*,const char*,const char*,const char*),void*);
  void  (*set_auxdata)(sqlite3_context*,int,void*,void (*)(void*));
  char * (*snprintf)(int,char*,const char*,...);
  int  (*step)(sqlite3_stmt*);
  int  (*table_column_metadata)(sqlite3*,const char*,const char*,const char*,char const**,char const**,int*,int*,int*);
  void  (*thread_cleanup)(void);
  int  (*total_changes)(sqlite3*);
  void * (*trace)(sqlite3*,void(*xTrace)(void*,const char*),void*);
  int  (*transfer_bindings)(sqlite3_stmt*,sqlite3_stmt*);
  void * (*update_hook)(sqlite3*,void(*)(void*,int ,char const*,char const*,sqlite_int64),void*);
  void * (*user_data)(sqlite3_context*);
  const void * (*value_blob)(sqlite3_value*);
  int  (*value_bytes)(sqlite3_value*);
  int  (*value_bytes16)(sqlite3_value*);
  double  (*value_double)(sqlite3_value*);
  int  (*value_int)(sqlite3_value*);
  sqlite_int64  (*value_int64)(sqlite3_value*);
  int  (*value_numeric_type)(sqlite3_value*);
  const unsigned char * (*value_text)(sqlite3_value*);
  const void * (*value_text16)(sqlite3_value*);
  const void * (*value_text16be)(sqlite3_value*);
  const void * (*value_text16le)(sqlite3_value*);
  int  (*value_type)(sqlite3_value*);
  char * (*vmprintf)(const char*,va_list);
};

/*
** The following macros redefine the API routines so that they are
** redirected throught the global sqlite3_api structure.
**
** This header file is also used by the loadext.c source file
** (part of the main SQLite library - not an extension) so that
** it can get access to the sqlite3_api_routines structure
** definition.  But the main library does not want to redefine
** the API.  So the redefinition macros are only valid if the
** SQLITE_CORE macros is undefined.
*/
#ifndef SQLITE_CORE
#define sqlite3_aggregate_context      sqlite3_api->aggregate_context
#define sqlite3_aggregate_count        sqlite3_api->aggregate_count
#define sqlite3_bind_blob              sqlite3_api->bind_blob
#define sqlite3_bind_double            sqlite3_api->bind_double
#define sqlite3_bind_int               sqlite3_api->bind_int
#define sqlite3_bind_int64             sqlite3_api->bind_int64
#define sqlite3_bind_null              sqlite3_api->bind_null
#define sqlite3_bind_parameter_count   sqlite3_api->bind_parameter_count
#define sqlite3_bind_parameter_index   sqlite3_api->bind_parameter_index
#define sqlite3_bind_parameter_name    sqlite3_api->bind_parameter_name
#define sqlite3_bind_text              sqlite3_api->bind_text
#define sqlite3_bind_text16            sqlite3_api->bind_text16
#define sqlite3_busy_handler           sqlite3_api->busy_handler
#define sqlite3_busy_timeout           sqlite3_api->busy_timeout
#define sqlite3_changes                sqlite3_api->changes
#define sqlite3_close                  sqlite3_api->close
#define sqlite3_collation_needed       sqlite3_api->collation_needed
#define sqlite3_collation_needed16     sqlite3_api->collation_needed16
#define sqlite3_column_blob            sqlite3_api->column_blob
#define sqlite3_column_bytes           sqlite3_api->column_bytes
#define sqlite3_column_bytes16         sqlite3_api->column_bytes16
#define sqlite3_column_count           sqlite3_api->column_count
#define sqlite3_column_database_name   sqlite3_api->column_database_name
#define sqlite3_column_database_name16 sqlite3_api->column_database_name16
#define sqlite3_column_decltype        sqlite3_api->column_decltype
#define sqlite3_column_decltype16      sqlite3_api->column_decltype16
#define sqlite3_column_double          sqlite3_api->column_double
#define sqlite3_column_int             sqlite3_api->column_int
#define sqlite3_column_int64           sqlite3_api->column_int64
#define sqlite3_column_name            sqlite3_api->column_name
#define sqlite3_column_name16          sqlite3_api->column_name16
#define sqlite3_column_origin_name     sqlite3_api->column_origin_name
#define sqlite3_column_origin_name16   sqlite3_api->column_origin_name16
#define sqlite3_column_table_name      sqlite3_api->column_table_name
#define sqlite3_column_table_name16    sqlite3_api->column_table_name16
#define sqlite3_column_text            sqlite3_api->column_text
#define sqlite3_column_text16          sqlite3_api->column_text16
#define sqlite3_column_type            sqlite3_api->column_type
#define sqlite3_commit_hook            sqlite3_api->commit_hook
#define sqlite3_complete               sqlite3_api->complete
#define sqlite3_complete16             sqlite3_api->complete16
#define sqlite3_create_collation       sqlite3_api->create_collation
#define sqlite3_create_collation16     sqlite3_api->create_collation16
#define sqlite3_create_function        sqlite3_api->create_function
#define sqlite3_create_function16      sqlite3_api->create_function16
#define sqlite3_data_count             sqlite3_api->data_count
#define sqlite3_db_handle              sqlite3_api->db_handle
#define sqlite3_enable_shared_cache    sqlite3_api->enable_shared_cache
#define sqlite3_errcode                sqlite3_api->errcode
#define sqlite3_errmsg                 sqlite3_api->errmsg
#define sqlite3_errmsg16               sqlite3_api->errmsg16
#define sqlite3_exec                   sqlite3_api->exec
#define sqlite3_expired                sqlite3_api->expired
#define sqlite3_finalize               sqlite3_api->finalize
#define sqlite3_free                   sqlite3_api->free
#define sqlite3_free_table             sqlite3_api->free_table
#define sqlite3_get_autocommit         sqlite3_api->get_autocommit
#define sqlite3_get_auxdata            sqlite3_api->get_auxdata
#define sqlite3_get_table              sqlite3_api->get_table
#define sqlite3_global_recover         sqlite3_api->global_recover
#define sqlite3_interrupt              sqlite3_api->interrupt
#define sqlite3_last_insert_rowid      sqlite3_api->last_insert_rowid
#define sqlite3_libversion             sqlite3_api->libversion
#define sqlite3_libversion_number      sqlite3_api->libversion_number
#define sqlite3_mprintf                sqlite3_api->mprintf
#define sqlite3_open                   sqlite3_api->open
#define sqlite3_open16                 sqlite3_api->open16
#define sqlite3_prepare                sqlite3_api->prepare
#define sqlite3_prepare16              sqlite3_api->prepare16
#define sqlite3_profile                sqlite3_api->profile
#define sqlite3_progress_handler       sqlite3_api->progress_handler
#define sqlite3_reset                  sqlite3_api->reset
#define sqlite3_result_blob            sqlite3_api->result_blob
#define sqlite3_result_double          sqlite3_api->result_double
#define sqlite3_result_error           sqlite3_api->result_error
#define sqlite3_result_error16         sqlite3_api->result_error16
#define sqlite3_result_int             sqlite3_api->result_int
#define sqlite3_result_int64           sqlite3_api->result_int64
#define sqlite3_result_null            sqlite3_api->result_null
#define sqlite3_result_text            sqlite3_api->result_text
#define sqlite3_result_text16          sqlite3_api->result_text16
#define sqlite3_result_text16be        sqlite3_api->result_text16be
#define sqlite3_result_text16le        sqlite3_api->result_text16le
#define sqlite3_result_value           sqlite3_api->result_value
#define sqlite3_rollback_hook          sqlite3_api->rollback_hook
#define sqlite3_set_authorizer         sqlite3_api->set_authorizer
#define sqlite3_set_auxdata            sqlite3_api->set_auxdata
#define sqlite3_snprintf               sqlite3_api->snprintf
#define sqlite3_step                   sqlite3_api->step
#define sqlite3_table_column_metadata  sqlite3_api->table_column_metadata
#define sqlite3_thread_cleanup         sqlite3_api->thread_cleanup
#define sqlite3_total_changes          sqlite3_api->total_changes
#define sqlite3_trace                  sqlite3_api->trace
#define sqlite3_transfer_bindings      sqlite3_api->transfer_bindings
#define sqlite3_update_hook            sqlite3_api->update_hook
#define sqlite3_user_data              sqlite3_api->user_data
#define sqlite3_value_blob             sqlite3_api->value_blob
#define sqlite3_value_bytes            sqlite3_api->value_bytes
#define sqlite3_value_bytes16          sqlite3_api->value_bytes16
#define sqlite3_value_double           sqlite3_api->value_double
#define sqlite3_value_int              sqlite3_api->value_int
#define sqlite3_value_int64            sqlite3_api->value_int64
#define sqlite3_value_numeric_type     sqlite3_api->value_numeric_type
#define sqlite3_value_text             sqlite3_api->value_text
#define sqlite3_value_text16           sqlite3_api->value_text16
#define sqlite3_value_text16be         sqlite3_api->value_text16be
#define sqlite3_value_text16le         sqlite3_api->value_text16le
#define sqlite3_value_type             sqlite3_api->value_type
#define sqlite3_vmprintf               sqlite3_api->vmprintf
#endif /* SQLITE_CORE */

#define SQLITE_EXTENSION_INIT1     const sqlite3_api_routines *sqlite3_api;
#define SQLITE_EXTENSION_INIT2(v)  sqlite3_api = v;

#endif /* _SQLITE3EXT_H_ */